Stachybotrys is the toxic mold that has a burnt toast smell. I don't see how you could have a systemic Stachybotrys infection as it grows on low-nitrogen media like sheetrock and wood unless you have sinuses full of cellulose from blowing in cellulose (paper pulp) insulation or have a background in some kind of fiber processing. Use a drop of white Iodine per gallon of hot salt water in your Grossan irrigator and use Mucinex time-release Guiafenesin and drink plenty of pure water to thin mucus to get it to purge itself. Take Caprylic Acid to whack back any other systemic Candida which might sensitize you to infection or environmental mold and fungus. And please be patient. Check out the Colloidal Silver forum for a nontoxic antiseptic spray. God bless!